Python安装Scrapy出现以下错误怎么办

Posted 2023-04-03

参考技术A itcast@itcast:~/pachong$ scrapy
Traceback (most recent call last):
File "/usr/local/bin/scrapy", line 7, in <module>
from scrapy.cmdline import execute
File "/usr/local/lib/python2.7/dist-packages/scrapy/cmdline.py", line 9, in <module>
from scrapy.crawler import CrawlerProcess
File "/usr/local/lib/python2.7/dist-packages/scrapy/crawler.py", line 6, in <module>
from twisted.internet import reactor, defer
File "/usr/local/lib/python2.7/dist-packages/twisted/internet/reactor.py", line 38, in <module>
from twisted.internet import default
File "/usr/local/lib/python2.7/dist-packages/twisted/internet/default.py", line 56, in <module>
install = _getInstallFunction(platform)
File "/usr/local/lib/python2.7/dist-packages/twisted/internet/default.py", line 44, in _getInstallFunction
from twisted.internet.epollreactor import install
File "/usr/local/lib/python2.7/dist-packages/twisted/internet/epollreactor.py", line 24, in <module>
from twisted.internet import posixbase
File "/usr/local/lib/python2.7/dist-packages/twisted/internet/posixbase.py", line 18, in <module>
from twisted.internet import error, udp, tcp
File "/usr/local/lib/python2.7/dist-packages/twisted/internet/tcp.py", line 28, in <module>
from twisted.internet._newtls import (
File "/usr/local/lib/python2.7/dist-packages/twisted/internet/_newtls.py", line 21, in <module>
from twisted.protocols.tls import TLSMemoryBIOFactory, TLSMemoryBIOProtocol
File "/usr/local/lib/python2.7/dist-packages/twisted/protocols/tls.py", line 63, in <module>
from twisted.internet._sslverify import _setAcceptableProtocols
File "/usr/local/lib/python2.7/dist-packages/twisted/internet/_sslverify.py", line 38, in <module>
TLSVersion.TLSv1_1: SSL.OP_NO_TLSv1_1,
AttributeError: 'module' object has no attribute 'OP_NO_TLSv1_1'

安装scrapy的时候出现pyasn1报错

出现图中错误的原因是：

<ignore_js_op>

 

原因为版本不一致导致的，可以通过以下方法解决：

运行以下命令更新pyasn1

sudopip3 install --upgrade pyasn1

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